Pulverizer



June 4, 1929.

A. F. .THOMPSON PULVERIZER Filed June 15, 1927 2 Sheets-Sheet @51 5 E Thompson J n 1929- A. F. THOMPSON PULVER I Z ER 2 Sheets-Sheet 2 Filed June 13, 1927 I Elma flow @EPE; F -Thumpscn-L ..-1n achines gfor .pulverizing ore and the I like.

places where-heav i cannot be taken ;-;t BdIRPIOVEd-IIRLOhlIlG bechine,: the view being taken substantially on 3O showing-mlifting oam and ratchet r block on generallyydesignatethe;improved pulverizing Patented June 4, 1929.

."UEN'ITiEZD "STATES 1 ,AYERS 'F. THOMPSON, r-

1P arm rr ewes.

SUNLA QGALIFORNIA.

LPUIQVERIZER.

' li pheation fledjnn imy This invention relates to improvements in The primary object oftthisiinvention .is

V the. provision of; an improved pulverizin-g machine, particularly \VQllg'iLdiLPbQd .for use in connection with the pulverizing of. ores in orden to obtain-valuable minerals therefrom, the jimpreved machine being one nwhich is relatively small and con 1paet,.and can be with facility transported to relatively inaccessible ore crushing machines operable upon a principle which does not need the use of at-eras; an aid tothe flowgand =11 ulverizing of the ere.

()ther ob'eets and advantages ,of this invention will be apparent. during the course 4 of l-llBj fQllQYVl-ng detailed description.

the line 2--2 of Figure :1.

Figures 3 and flare-sectional ,viewstaken si'ibstantially 0.11 thci-nrespectivelines ofFigure rl-o'f the drawings.

Figure dis a fragmentary sectional view which the same. operates.

fIn ,the dn Wings, wherein qfor the purpose of illustration is shown lbut-; a preferred embodiment ofzthe invention, the letter A may .-machine,qvhichniay comprise a frame iBEhaV" ing azpulverizing trough or receptacle Cthcreon the improved frame B reciprocably sup- I aorting :hammersV-orpulverizers D operated y means E. Means F .isprovideditopush ore :from artroughG to;theichamber of the pulverizing receptacle. C. i

-.The frame-B preferably comprises a' pair piece 10 having-spaced uprights or posts .12 and :13; supported athereon, and similarly the- :base. piece "11 having spaced uprights or-posts 514 land supported -thereon. {IIhe posts. or

uprights 12,1113, r14 {and 15 are supported on.

their all-GSPBQtiVQ bases by having reduced of the, drawings.

abeam 25.

tenong ends &1'6 supported v in a; mor.ticed; relation inesockets j provided in the base gpieces 10i=and 11,, and.- held. therein-by dowel. pins. or

members 17, as,illustrated iniEiguresB audit ,At: the upper ends thereof the. uprights r12 .-and.;13. have ;a cross piece. or..be,anr1..1.8; mor- ,ticedcand secured therein and similarlythe .upper ends of the uprights, 1%La-nds15 support .a crosspiece 19.

:- Preferably resting von .the 1 base pieces .10

and, 11, between'the respective posts supported thereon is a longitudinally. extending sup porting. beam or platform 2-5, the: upper surface 26 of avhich slopes. in a. plane outwardly fromthetposts of the base piece ldtowards 1the p0sts on. the basepiecell.

- Referring" to the pulverizing receptacle or .box C, :thefsame: is preferably of .metal for Im-ation, and-supported. by. the uprights 12 .to 14: inclusivepand by the-platferm25. iOnQthe top surface 26 of the platform 25.',is..a..r.ela-

itively thick steelfloor plate '30, .Whitih. may" be secured thereon c in any approved irelation,

which in Width is equal to the .Width ,iof .the

Side plates 31.- and 32; preferably of metal,

are secured to {the beam 25, at their I lo ver margins; byI means of. transversely, extending bolts 33 which extend through. the .beam 25. c

The plates, 31. .and.32 extendiinleirgthjthe ene engthOf-,the beam25,..and atfiheilxends they 1 are secured against the facing surfaces ofgthe posts 12. to 15inclusive ;v the plates '31 being .securedto thefacing surfaces of posts 12 and 1:4, .by .meanscofpconne cting yangles 36; illustrated .in Figure .2 of -.the d rawings, and the 2 plates .32 being snn larly secured to the facing-surfaces of theuprlghts :or posts 13-, and'15, bymeansof ;ang1es:37,se-

curelymiveteclOrbOlted-in place.

he plates ;.31,,an,d 32 :at the upper edges thereof are provided withangle members .40 and A1 respectively, riveted .i-n place,v and-rat the outer sides of said plates, providing. her-1- zontal flanges uponwhichsa: detachable cover "plate :42 may 'rest; for secureinent to :.the

angles v .and .41 by means of detachable bolts 43,-as-best illustrated inF gure i. ofthe adrawings. This cover plate-AQextends the lengthof.thereceptacle-between the p0sts12 to 15. p p

' Referring more particularlytotheh mmers D and. means i for supporting. the same, it is to be noted that a snpportlngt angl 0 member 50 is secured, at the ends thereof, between the uprights 13 and 15, which aids in the securing of the upper ends of the uprights at the ends of the machine A. This angle member 50 provides a vertical leg 52 and a horizontal leg 53 lying immediately above and in spaced relation with the cover plate 42 of the pulverizing chamber or receptacle C. At its ends the leg 52 is secured to the uprights 13 and 15 by means of angle pieces riveted or bolted in place to said vertical leg and the facing surfaces of the upper ends of the uprights 13 and .15, as illustrated in Figures 1 and 4: of the drawings.

Each of the hammer constructionsD includes the rod or body portion 60, supported in aligning openings 61 and 62 provided in the cover plate 42 and angle leg 53 respec tively. The lower end of the hammer body or rod is provided with a substantially polygonal shaped hammer head 65, provided with a socket 66, as illustrated in Figure 4, in which the lower end of the respective rod 60 fits and is held therein by means of a cross pin 67. The hammer head 65 in width is about equivalent to the chamber 7 0 wherein the pulverization takes place, and in cross section the head 65 is preferably square. The lower surface 73 thereof is beveled in a parallel relation with the top sloping surface of the floor plate 80, as illustrated in Figure 1 of the drawings.

()n each of the hammer rods 60 is positioned a spiral compression spring between the cover plate 12 and angle leg 5b;

the springs 80 engaging the under surface of the angle leg 53and at their lower ends resting on suitable washers 81held in place by cotter pins 82 which may be positioned in any of a number of apertures 83 provided through each ofv the rods 60, in order to retain the springs 80 under a desired compression; the compression acting to normally force the hammer head 65 against the pulverizing floor 30, as illustrated in Figure 1 of the drawings.

At their upper ends each of the hammer rods 60 supports, above the angle 50, a ratchet block or head 90, in the form of a sleeve through which the rod 60 extends; the ratchet being adjusted on the rod 60 by means of a set screw 91; and animportant structural feature of the ratchet 90 being the provision of an upper tooth 92, at a side thereof, providinga preferably horizontal surface 93 facing downwardly and in a plane spaced above the lower edge of the ratchet 90; the

ratchet 90 below the upper tooth 92 being sloped at an acuate angled relation to provide asecond or lower toot-h, the lower edge of which is flush with the lower edge of the ratchet 90, as is best illustrated in Figure 5 of the drawings.

Referring to the means E for operating the hammers the same comprises a horizontal operating shaft 100, rotatably bearing in suitable journal boxes or bearings 101 supported on the top cross pieces18 and 19; the rod extending along the side of the plane in which the hammers D lie. On the shaft 100-for each hammer rod 60 is positioned a can]. 105, suitably keyed as at 106 in any suitable relation for rotation with the shaft 100, each of said cams including a pair of closely spaced teeth 10'? and 108, preferably pointed. and at a t'uigential relationon the cam.

During rotation of the shaft 100'the foremost tooth 107 of the cam engages the under surface 93 of the upper tooth near the respective hammer ratchet 90, initially elevat ing the hammer so that the head 65 is raised above the floor plate 30. As the shaft 100 continues to rotate the second cam tooth 108 comes into engagement with the under surface of the ratchet tooth 93, and of course the camtooth 107 then rides off the upper tooth 92, and upon continued rotation of the cam the hammer head 65 is further elevated; the highestelevated relation of the hammer in so far as it is permitted to be elevated by the ratchet and its respective cam being illustrated in Figure 4 of the drawings.

The trough G is preferably of metal, including a sloping floor 110, having spaced side walls 111 and 112 rigid therewith, said side walls being flanged at 11 1 and secured to the posts 12 and 13, as illustrated in Figure 2 of the drawings, with the floor extending into the space between the posts 12 and 13 above the floor plate 30, so that ore deposited in the trough G will be carried downwardly by gravity over the floor 110 into the pulverizing receptacle floor plate 30, ascan readily be understood from Figure 1. The ore box G furthermore includes an outer retaining wall 117, the top of the box being open for receiving ore in an unobstructed relation. The forward edge of the floor 110 of the box G is spaced above the top surface of'the plate 30, and in this space is reciprocably disposed a pusher 120, forming part of means F for pushing the ore after it has fallen along the ore box floor 110, into the ore receptacle C beneath the first hammer head 65. This pusher is preferably of metal formation, and the means for operating the same comprises a bell crank lever pivoted as at 126 on the end surface of the beam 25, one end of the bell crank lever 125 being pivotally secured at 130 to the rear end of the ore box G beneath the first hammer head 65,

as is readily apparent from Figure 1.

The operatingcams 105 are so positioned with respect to each other that the hammers D will be lifted and lowered successively from one end of the machine A towards the other end, it being preferred that about ten of the hammers D should be used in the machine A,

and that not more than three of the same should be elevated above the pulverizing floor at any one time, and these at different degrees of elevation.

The shaft at one end is provided with a pulley wheel 150 or like expedient, and any approved means may be provided to drive the shaft 100, as desired and available.

It isreadily apparent from the foregoing description of this invention that an ore pulverizing machine has been provided, which is very compact. The ore will have a continuous flow along the machine, without interruption, aided by the successive feeder impact of the hammers; by the gravity slope of the first plate 30; by the current of air caused by the hammers falling successively, and also because of the pusher effect of the means I the pulverized ore being discharged at the extreme lower end of the floor, as is readily apparent, b

An adjustable ore flow controlling gate 15 is positioned in the ore trough G, for vertical sliding, the same being guided at its side margins by suitable channels 153, and the same being held at a desired elevation on a suitable angle plate or bracket 154, which comprises also a support for the spring 140 above mentioned; the gate 152 having an ad justable screw threaded shank 155 extending through this plate or bracket 154 and being held on the plate 154 in a desired relation by means of adjustable lock nuts 156, as is apparent from Figures 1 and 8 of the drawings- Various changes in the shape, size, and arrangement of parts may be made to the form of invention herein shown and described, without departing from the spirit of the invention or the scope of the claims.

I claim:

1. In a pulverizing machine the combination of a supporting frame, a floor plate on the frame having a top surface sloping from one end of the machine towards the other end thereof, spaced side Walls carried by the frame at opposite sides of the floor plate and extending above the floor plate, a detachable cover on the tops of said side walls provid ing a. compartment therebelow between the side walls, means for feeding ore into the compartment at one end thereof, hammers,

and means to operate the hammer-sin said compartment for pulverizin'g the ore therein.

2. In a pu-lveri-zing machine the combinastion of a supporting frame, a floor plate on "the frame having a top surface sloping from one end of the machine towards the other end thereof, spaced side walls carried by the 7 frame at opposite sides of the floor plate and extendmg above the floor plate, a detachable cover on the tops of said side walls providing a compartment therebelow between the side Walls, means for feeding ore into the compartment at one end thereof, hammers, an elongated supporting member in spaced relation above said cover carried 'by said frame, said cover and said elongated member having aligning openings therein, plurality of rods reciprocably supported in said aligning openings and at their lower ends extending into the compartment, hammer heads on said rods in said compartment, and means operating on said rods to reciprocate the same in an ore pulverizing hammer rela tion in said compartment.

3. In a pulverizing machine the combina- I tion of a supporting frame, a floor plate on the frame having a top surface sloping from one end of the machine towards the other end thereof, spaced side walls carried by the frame at opposite sides of the floor plate and extending above the floor plate, a detachable cover on the tops of said side walls providing a compartment therebelow between the side Walls, means for feeding ore into the compartment at one end thereof, hammers, an elongated supporting member in spaced relation above said cover carried by said frame, said cover and said elongated member having aligning openings therein, a plurality of rods reciprocably supported in said aligning openings and at. their lower ends extending into the compartment, hammer heads on said rods in said compartment, means operating on said rods to reciprocate the same in an ore pulverizing hammer relation in said compartment, said means comprising ratchets on the upper ends of said rods, a rotatable shaft, cams operating on said shaft operating on said ratchets to lift said rods, and springs acting on therods to normally lower the same into an ore pulverizin-g relation upon release of the ratchets by said cams.

4. In a pulverizing machine a frame, a pulverizing receptacle, a reciprocating hammer operating in said receptacle, a member on the hammer providing a pair of teeth, a rotatable shaft, and a cam acting on the shaft having a pair of teeth one of which is adapted to engage one of the teeth of said ratchet and upon release thereof the other tooth being adapted to engage the other tooth of said ratchet to elevate the hammer.

5. In an ore pulverizing machine a frame including spaced end uprights, an elongated supporting beam connected with said spaced end uprights, spaced side walls connected with said supporting beam and extending thereabove, a floor plate between said plates on said supporting beam sloping from one end of the beam towards the other end there'- of, a cover plate on said side walls having apertures therein, means for feeding ore onto the floor plate between said side walls, an angle member connected at its ends to said uprights and spaced above said cover plate, said angle member having apertures therein aligning with the apertures of the cover plate, reciprocating rods slid ably mounted in said aligning apertures and having hammer against the floor plate, an elongated shaft, and 20 toothed cams on the shaft for the ratchet teeth of the rods for engagement thereby to elevate said hammer heads.

AYERS F. THOMPSON. 

